Abstract

Screens consisting of superimposed, thin, transparent, luminescent layers were formed by evaporation in a vacuum. The color of the luminescent emission depends on the depth of penetration of the cathode rays into the bilayer screens. Due to the decrease in luminescent brightness after the phosphor layers are penetrated, the pure chromatic emission from both of the layers may be obtained. A particular screen consisting of aluminum/CaWO₄[W] (blue)/ZnS[Mn] (yellow)/glass has been analyzed. The laws of color mixture are found to be obeyed. Optical interference effects in the screen produce a slight color shift in the emission. The basic ideas of the multilayer chromatic system are briefly discussed.

© 1957 Optical Society of America

Formation of Luminescent Films by Evaporation

Charles Feldman and Margaret O’Hara
J. Opt. Soc. Am. 47(4) 300-305 (1957)

Problems Concerning the Production of Cathode-Ray Tube Screens*

H. W. Leverenz
J. Opt. Soc. Am. 27(1) 25-35 (1937)

Console Comparator Microphotometer Featuring High Screen Intensity and a Null-Ratio Measurement System

Harold B. Beal, Richard K. Brehm, and Richard F. Jarrell
J. Opt. Soc. Am. 47(4) 306-311 (1957)

Nature of Luminescent Centers in Alkali Halide and Zinc Sulfide Phosphors*

Ferd E. Williams
J. Opt. Soc. Am. 47(10) 869-876 (1957)

Response of the Human Eye to Sudden Changes in the Wavelength of Stimulation

William R. Biersdorf and John C. Armington
J. Opt. Soc. Am. 47(3) 208-215 (1957)