Abstract

The apparent reflectance of a submerged object is strongly influenced by refraction and reflection at the surface of the submerging medium. These actions affect stain and color purities in photographic color prints, the reflecting bases of which are submerged in gelatin. Print reflection densities can be calculated from base reflectance and gelatin transmittance; a family of graphs of the relationships is presented. By a simple modification, reflectometers can be made to measure directly the reflectance of objects submerged in transparent media.

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References

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  1. D. B. Judd, J. Research Natl. Bur. Standards 29, 329 (1942).
  2. Unpublished work.
  3. F. C. Williams, J. Opt. Soc. Am. 40, 104 (1950).
  4. Color Sensitometry Subcommittee, Principles of Color Sensitometry, Society of Motion Picture and Television Engineers, New York, 1950.

Judd, D. B.

D. B. Judd, J. Research Natl. Bur. Standards 29, 329 (1942).

Williams, F. C.

F. C. Williams, J. Opt. Soc. Am. 40, 104 (1950).

Other

D. B. Judd, J. Research Natl. Bur. Standards 29, 329 (1942).

Unpublished work.

F. C. Williams, J. Opt. Soc. Am. 40, 104 (1950).

Color Sensitometry Subcommittee, Principles of Color Sensitometry, Society of Motion Picture and Television Engineers, New York, 1950.

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