Document Type and Number:
Japanese Patent JPS5232874
Kind Code:
B2
Abstract:
A phosphor system consisting of an alkaline-earth metal silicate host lattice activated by trivalent terbium together with monovalent alkaline metal as a charge compensator, said phosphor system corresponding to the formula, X3-xY1-xSi2O8: Tbx, Zx wherein X is at least one of Ba, Sr, and Ca; Y is at least one of Mg and Zn; and Z acting as a charge compensator is at least one of Li, K, and Na, and x is from 0.001 to 0.95, said phosphor system substituting Ca plus Mg for X plus Y of the formula being excluded. The present invention provides an efficient green-emitting phosphor particularly useful for a deluxe fluorescent lamp.
More Like This:
Application Number:
JP8447475A
Publication Date:
August 24, 1977
Filing Date:
July 11, 1975
Export Citation:
International Classes:
C09K11/08; C09K11/77