OSA's Digital Library

Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 40, Iss. 12 — Dec. 1, 1950
  • pp: 863–863

Photography of High Altitude Aerial Objects

C. N. NELSON and D. H. HAMSHER  »View Author Affiliations


JOSA, Vol. 40, Issue 12, pp. 863-863 (1950)
http://dx.doi.org/10.1364/JOSA.40.000863


View Full Text Article

Acrobat PDF (2043 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

An experimental study of the photography, from the ground, of objects in the upper atmosphere shows that the results are improved by the use of long-focal-length lenses, high contrast film, and color filters chosen with regard to the relative spectral qualities of the object and the sky background. The most difficult problem was the photography of dark gray objects against a blue sky, and for these conditions a blue filter gave best results. For these same conditions, an increase in vertical range (altitude) was found to give a greater decrease in subject contrast than an equal increase in horizontal range. Of lesser difficulty was the photography of bright, white objects against a blue sky; and for these conditions a red filter gave best results. Data were obtained regarding the optimum spectral-reflectance characteristics of targets for special purposes. The required characteristics of the photographic emulsion were the subject of a detailed study. A high contrast, high speed panchromatic film, especially d esigned for this work, is described. Exposure and processing data for this film are given.

Citation
C. N. NELSON and D. H. HAMSHER, "Photography of High Altitude Aerial Objects," J. Opt. Soc. Am. 40, 863-863 (1950)
http://www.opticsinfobase.org/josa/abstract.cfm?URI=josa-40-12-863


Sort:  Author  |  Journal  |  Reset

References

  1. S. Q. Duntley, J. Opt. Soc. Am. 38, 179 (1948).
  2. S. Q. Duntley, J. Opt. Soc. Am. 38, 237 (1948).
  3. H. S. Coleman, F. J. Morris, H. E. Rosenberger, and M. J. Walker, J. Opt. Soc. Am. 39, 515 (1949).
  4. H. S. Coleman and H. E. Rosenberger, J. Opt. Soc. Am. 39, 990 (1949).

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