Page:JOSA-Vol 06-06.djvu/5

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Journal
of the
Optical Society of America
and
Review of Scientific Instruments



Vol. VI
AUGUST, 1922
Number 6



REPORT OF COMMITTEE ON COLORIMETRY
FOR 1920-21

by

L. T. Troland, Chairman[1]

CONTENTS

page
A. List of Tables 529
B. List of Figures 529
I. Introduction 530
I. Nomenclature 531
1. Psychological Terms.
A. Color.
B. The Three Attributes of Color. (a) Brilliance, (b) Hue, (c) Saturation, (d) Auxiliary Terms.
C. Species of Colors.
D. Psychological Primaries.
E. The Measurement of Color.
2. Stimulus Terms.
A. Radiant Energy.
B. The Physical Spectrum.
C. Spectral Distributions.
D. Homogeneous Radiant Energy.
  1. The Chairman of the Committee wishes to acknowledge his indebtedness to various members of his committee as follows: to Mr. Priest for a great mass of data, helpful criticisms and the suggestions drawn from his preliminary committee report of 1919 (not published, but copy may be borrowed from Bureau of Standards Library, Cf. J. Op. Soc., 4, p. 186; 1920); to Mr. Weaver for his elaborate computations of chromatic excitation values for many different classes of stimuli as well as for the development of the data upon which these computations were based; to Mr. Jones and to Dr. Ives for data and valuable criticisms.

527