OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 54, Iss. 4 — Apr. 1, 1964
  • pp: 532–540

Characteristics of Mercury Vapor-Metallic Iodide Arc Lamps

GILBERT H. REILING  »View Author Affiliations

JOSA, Vol. 54, Issue 4, pp. 532-540 (1964)

View Full Text Article

Acrobat PDF (941 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



Arc lamps with efficiencies in the range from 70 to 110 lm/W, with good color rendition, have been made by a combination of metallic iodides and mercury in a medium-pressure vapor arc. Sodium iodide and thallium iodide with mercury were found to give the highest efficiency although other compounds such as indium iodide also provide improved color rendition. Careful control of the vapor pressure of the components, attained by control of lamp temperature and correct proportion of the iodides, is necessary in order to attain good color balance and efficiency. In case of arc tubes similar in dimensions to the 400-W mercury lamp, the new lamps operate with similar volt-ampere characteristics.

Data on the luminous efficiency, spectral characteristics, chemical reactions, and arc performance are shown and discussed. Several effects such as reduction of excitation temperature by the iodides appear to be responsible for increased efficiency.

GILBERT H. REILING, "Characteristics of Mercury Vapor-Metallic Iodide Arc Lamps," J. Opt. Soc. Am. 54, 532-540 (1964)

Sort:  Author  |  Journal  |  Reset


  1. D. A. Larson, H. D. Fraser, W. V. Cushing, and M. C. Unglert, Preprint 29, Meeting of the Illuminating Engineering Society, Dallas, 9–14 September 1962.
  2. E. C. Martt, L. J. Smialek, and A. C. Green, Preprint 2, Meeting of the Illuminating Engineering Society, Detroit, 8–13 September 1963.
  3. W. Elenbaas, The High Pressure Mercury Vapor Discharge (Interscience Publishers, Inc., New York, 1951).
  4. W. G. Fastie, J. Opt. Soc. Am. 42, 641 (1952).
  5. Carl Kenty, J. Appl. Phys. 21, 1309 (1950).
  6. T. Holstein, Phys. Rev. 72, 1212 (1947).
  7. G. H. Reiling, IRE Trans. Prof. Group Electron Devices ED-9, No. 3, May 1962.

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