Cathode-Ray-Tube Color Reproduction in Relation to Gaussian Spectral Parameters

Ojars J. Sovers; Lewis J. Bodi

doi:10.1364/JOSA.55.001643

Journal of the Optical Society of America
Vol. 55,
Issue 12,
pp. 1643-1650
(1965)
•https://doi.org/10.1364/JOSA.55.001643

Cathode-Ray-Tube Color Reproduction in Relation to Gaussian Spectral Parameters

Ojars J. Sovers and Lewis J. Bodi

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Ojars J. Sovers and Lewis J. Bodi, "Cathode-Ray-Tube Color Reproduction in Relation to Gaussian Spectral Parameters," J. Opt. Soc. Am. 55, 1643-1650 (1965)

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Abstract

Experimental spectral distributions are approximated by curves which are Gaussian in frequency. Color coordinates and luminosities are calculated, as functions of the Gaussian parameters. This approach is extended to make possible a detailed analysis of the problem of color reproduction in tricolor cathode ray tubes. Variations in luminosity, color triangle area, and radiance ratios are related to the two parameters defining the Gaussian distributions.

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	(x,y)		(u,v)
Phosphor	Experimental	Gaussian fit	Experimental	Gaussian fit
P-1	0.22, 0.71	0.18, 0.73	0.08, 0.38	0.06, 0.38
P-2 (2)	0.28, 0.53	0.29, 0.54	0.13, 0.36	0.13, 0.36
P-3 (2)	0.52, 0.47	0.54, 0.46	0.28, 0.37	0.29, 0.37
P-4 (2)	0.27, 0.30	0.27, 0.30	0.18, 0.30	0.18, 0.30
P-5	0.17, 0.13	0.16, 0.11	0.16, 0.19	0.16, 0.17
P-6 (2)	0.34, 0.37	0.33, 0.37	0.20, 0.33	0.20, 0.33
P-11	0.14, 0.15	0.14, 0.13	0.12, 0.20	0.13, 0.18
P-12	0.56, 0.44	0.55, 0.45	0.31, 0.37	0.30, 0.37
P-13	0.67, 0.33	0.66, 0.33	0.48, 0.35	0.47, 0.35
P-15 (2)	0.22, 0.42	0.22, 0.41	0.11, 0.33	0.12, 0.33
P-16	0.18, 0.003	0.17, 0.01	0.26, 0.01	0.24, 0.03
P-17 (2)	0.30, 0.39	0.30, 0.38	0.17, 0.33	0.17, 0.33
P-18 (3)	0.33, 0.35	0.33, 0.36	0.21, 0.32	0.20, 0.33
P-19	0.57, 0.42	0.56, 0.44	0.33, 0.37	0.31, 0.37
P-20	0.43, 0.55	0.42, 0.54	0.20, 0.38	0.20, 0.37
P-21 (2)	0.54, 0.37	0.56, 0.37	0.34, 0.35	0.36, 0.35
P-22 (3)	0.29, 0.32	0.29, 0.32	0.18, 0.31	0.18, 0.31
P-24	0.25, 0.44	0.25, 0.44	0.13, 0.34	0.13, 0.34
P-25 (2)	0.56, 0.43	0.56, 0.44	0.32, 0.37	0.32, 0.37
P-26	0.58, 0.42	0.58, 0.42	0.34, 0.37	0.33, 0.37
P-27	0.67, 0.33	0.67, 0.33	0.49, 0.35	0.48, 0.35
P-33	0.56, 0.44	0.55, 0.45	0.31, 0.37	0.30, 0.37
P-35 (2)	0.29, 0.42	0.28, 0.43	0.15, 0.34	0.15, 0.34

Color	Phosphor	λ₀, nm	σ, nm	x, y	u, v
Blue	ZnS:Ag	444	60	0.15, 0.05	0.19, 0.08
Green	(Zn,Cd)S:Ag	526	75	0.26, 0.61	0.11, 0.37
Red	YVO₄:Eu^a,b	614	20	0.67, 0.33	0.48, 0.35

	(x,y)		(u,v)
Phosphor	Experimental	Gaussian fit	Experimental	Gaussian fit
P-1	0.22, 0.71	0.18, 0.73	0.08, 0.38	0.06, 0.38
P-2 (2)	0.28, 0.53	0.29, 0.54	0.13, 0.36	0.13, 0.36
P-3 (2)	0.52, 0.47	0.54, 0.46	0.28, 0.37	0.29, 0.37
P-4 (2)	0.27, 0.30	0.27, 0.30	0.18, 0.30	0.18, 0.30
P-5	0.17, 0.13	0.16, 0.11	0.16, 0.19	0.16, 0.17
P-6 (2)	0.34, 0.37	0.33, 0.37	0.20, 0.33	0.20, 0.33
P-11	0.14, 0.15	0.14, 0.13	0.12, 0.20	0.13, 0.18
P-12	0.56, 0.44	0.55, 0.45	0.31, 0.37	0.30, 0.37
P-13	0.67, 0.33	0.66, 0.33	0.48, 0.35	0.47, 0.35
P-15 (2)	0.22, 0.42	0.22, 0.41	0.11, 0.33	0.12, 0.33
P-16	0.18, 0.003	0.17, 0.01	0.26, 0.01	0.24, 0.03
P-17 (2)	0.30, 0.39	0.30, 0.38	0.17, 0.33	0.17, 0.33
P-18 (3)	0.33, 0.35	0.33, 0.36	0.21, 0.32	0.20, 0.33
P-19	0.57, 0.42	0.56, 0.44	0.33, 0.37	0.31, 0.37
P-20	0.43, 0.55	0.42, 0.54	0.20, 0.38	0.20, 0.37
P-21 (2)	0.54, 0.37	0.56, 0.37	0.34, 0.35	0.36, 0.35
P-22 (3)	0.29, 0.32	0.29, 0.32	0.18, 0.31	0.18, 0.31
P-24	0.25, 0.44	0.25, 0.44	0.13, 0.34	0.13, 0.34
P-25 (2)	0.56, 0.43	0.56, 0.44	0.32, 0.37	0.32, 0.37
P-26	0.58, 0.42	0.58, 0.42	0.34, 0.37	0.33, 0.37
P-27	0.67, 0.33	0.67, 0.33	0.49, 0.35	0.48, 0.35
P-33	0.56, 0.44	0.55, 0.45	0.31, 0.37	0.30, 0.37
P-35 (2)	0.29, 0.42	0.28, 0.43	0.15, 0.34	0.15, 0.34

Color	Phosphor	λ₀, nm	σ, nm	x, y	u, v
Blue	ZnS:Ag	444	60	0.15, 0.05	0.19, 0.08
Green	(Zn,Cd)S:Ag	526	75	0.26, 0.61	0.11, 0.37
Red	YVO₄:Eu^a,b	614	20	0.67, 0.33	0.48, 0.35

Abstract

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Figures (13)

Tables (2)

Equations (23)

Journal of the Optical Society of America