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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 40, Iss. 3 — Mar. 1, 1950
  • pp: 138–138

Method of Colorimetric Integration Using Punched-Card Accounting Machines

DAVID L. MACADAM  »View Author Affiliations

JOSA, Vol. 40, Issue 3, pp. 138-138 (1950)

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When colorimetric specifications of a large number of samples need be computed from spectrophotometric data, an important saving of time can be realized by use of standard IBM punched-card computing equipment. The method employs weighted ordinates, and results for two light sources can be obtained with very little more expenditure of time than for one. The method is described, with detailed instructions for the machine operators.

DAVID L. MACADAM, "Method of Colorimetric Integration Using Punched-Card Accounting Machines," J. Opt. Soc. Am. 40, 138-138 (1950)

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  1. L. F. Knudsen, J. Am. Statistical Assn. 37, 496 (1942).
  2. Kelly, Gibson, and Nickerson, J. Opt. Soc. Am. 33, 355 (1943).
  3. Granville, Nickerson, and Foss, J. Opt. Soc. Am. 33, 376 (1943).
  4. D. B. Judd, J. Opt. Soc. Am. 23, 359 (1933).
  5. Committee on Colorimetry, J. Opt. Soc. Am. 34, 633 (1944).

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