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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 32, Iss. 3 — Mar. 1, 1942
  • pp: 139–142

The “Diffusing Effect” of Fog

W. E. KNOWLES MIDDLETON  »View Author Affiliations

JOSA, Vol. 32, Issue 3, pp. 139-142 (1942)

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W. E. KNOWLES MIDDLETON, "The “Diffusing Effect” of Fog," J. Opt. Soc. Am. 32, 139-142 (1942)

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  1. For a general summary see W. E. K. Middleton, Visibility in Meteorology (University of Toronto Press, 1941), second edition.
  2. W. E. K. Middleton,J. Opt. Soc. Am. 27, 112–116 (1937).
  3. M. G. Bennett, Q. J. Roy. Met. Soc. 56, 1–29 (1930).
  4. The relations between flux, illumination, and brightness that are implied in the above are clarified by the adoption of the modern definition of brightness due to A. Gershun, J. Math. Phys. 18, 51–151 (1939), p. 61: "The brightness of a luminous source may be defined as the normal component of illumination produced by that source per unit solid angle."
  5. C. Wiener, Nova Acta d. k. Leop. Carol. Akad. d. Naturf. Halle 73, 1–240 (1900); and 91, 1–292 (1909).
  6. H. G. Houghton, J. Aer. Sci. 6, 408–411 (1939).

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