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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 58, Iss. 6 — Jun. 1, 1968
  • pp: 755–757

Kubelka-Munk Coefficients from Transmittance

B. PATRICK CALDWELL  »View Author Affiliations

JOSA, Vol. 58, Issue 6, pp. 755-757 (1968)

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A simplified method is described for computation of Kubelka-Munk coefficients from internal transmittance measurements of two specimens of the same material where one specimen is twice as thick as the other. Equations are derived for determining the scattering coefficient S, the absorption coefficient K, the Kubelka parameters a and b, the internal transmittance τi, the reflectance of an infinitely thick specimen ρ∞, and the reflectance of a specimen with an ideal black background ρ0. Graphs are given to estimate the range of error of ρ∞, S, and K as a function of estimated errors of measurement of transmittance.

B. PATRICK CALDWELL, "Kubelka-Munk Coefficients from Transmittance," J. Opt. Soc. Am. 58, 755-757 (1968)

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  1. P. Kubelka and F. Munk, Z. Tech. Physik 12, 593 (1931).
  2. F. A. Steele, Paper Trade J. 100, 37 (1935).
  3. P. Kubelka, J. Opt. Soc. Am. 38, 448 (1948).
  4. D. B. Judd, J. Res. Natl. Bur. Std. (U. S.) 19, 287 (1937).
  5. D. B. Judd, Paper Trade J. 106, 5 (1938).

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