Page:JOSA-Vol 06-06.djvu/7

From Wikisource
Jump to navigation Jump to search
This page has been proofread, but needs to be validated.
Aug. 1922]
Colorimetry Report 1920-21
529
2. The Interconversion of Diverse Color Specifications.
A. Spectrophotometric Data to Excitations.
B. Monochromatic Analysis Data to Excitations.
C. Trichromatic Analysis Data to Excitations.
D. Rotatory Dispersion Data to Excitations.
E. Planckian Distribution Data to Excitations.
F. Comparator Data to Excitations.
III. Summary and Conclusion 592
C. Bibliography 592


A. List of Tables

Table No. Title
1. Equivalents in Terms of Fresnels of Wave-Lengths in Millimicrons 539
2. Average Normal Visibility Values 541
3. Spectral Chroma Scale 545
4. Saturation Scale Data 546
5. Comparative Saturations of Spectral Colors 547
6. Spectral Colors in Terms of Elementary Excitations 549
7. Relative Energy of a Black Body at Various Temperatures and Wave-Lengths 558
8. Relative Intensity Values over the Visible Spectrum for Average Noon Sunlight 563
9. Color Temperatures of Common Illuminants 565
10. Color Temperatures of Vacuum Tungsten Filaments at Various Efficiencies 566
11. Transmissions for Various Wave-Lengths of Ives Colorimeter Filters 568
12. Transmissions of Approved Photographic Taking Filters 569
13. Monochromatic Analyses of Certain Ridgway Colors 572
14. Excitation Values for Representative Monochromatic Analyses
(a) Spectral Hues 586
(b) Purple Hues 585
15. Coefficients for Interconverting Ives Colorimeter Data and Excitation 588
16. Excitation Values of Certain Rotatory Dispersion Colors 590
17. Excitation Values for Black Body Colors 590
18. Excitation Values for Certain Munsell Colors 591


B. List of Figures

Figure Number Title
1. The Dimensions of the Psychological Color Solid 543
2. Elementary Color Excitations for Different Wave-Lengths 548
3. Color Triangle, Showing Loci of Spectral and Black Body Excitations 552
4. (a) Wave-Lengths of Complementary Hues 553
(b) Frequencies of Complementary Hues 554
5. Planckian Energy Distributions at Various Temperatures 557
6. Spectral Energy Distributions of Natural and Artificial Sunlight 560
7. Spectral Energy Distribution of Standard Lamp Used for Precision Artificial Sunlight 561
8. Spectral Transmission of Tungsten-to-Daylight Filter (Wratten No. 78) 562