Abstract

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.

© 1950 Optical Society of America

Application of Punched Card Equipment to the Analysis of Complex Spectra

J. V. Atanasoff and A. E. Brandt
J. Opt. Soc. Am. 26(2) 83-88 (1936)

An Illuminant-Converting Filter for Use with the Automatic Tristimulus Integrator

H. R. Davidson, I. H. Godlove, J. M. Lambert, and G. J. Wright
J. Opt. Soc. Am. 40(12) 817-818 (1950)

Spectrophotometry in the Presence of Stray Radiation: A Table of Log[(100−k)/(T−k)]

Ascher Opler
J. Opt. Soc. Am. 40(6) 401-403 (1950)

Objectives and Methods of Density Measurement in Sensitometry of Color Films*

Franklin C. Williams
J. Opt. Soc. Am. 40(2) 104-112 (1950)

Spectroscopy from the Point of View of Communication Theory. Part IV. Automatic Recording of Infrared Spectra on Punched Cards

Gilbert W. King, Elaine H. Blanton, and Joanna Frawley
J. Opt. Soc. Am. 44(5) 397-402 (1954)