Electric lamp and discharge devices – Cathode ray tube – Screen
Patent
1974-09-13
1976-02-17
Lesmes, George F.
Electric lamp and discharge devices
Cathode ray tube
Screen
2523014R, 427 68, 427215, 428402, 428403, 428404, 428330, 428323, H01J 3120
Patent
active
039393771
ABSTRACT:
La.sub.2 O.sub.2 S particles are employed as carrier hosts in a cathodo-luminescent penetration phosphor composition for cathode ray display tubes. Tb and Eu ions are used in low concentrations as activators in the control of the red and green optical emission from within a film of the activated host material.
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Lesmes George F.
McDonald Alan T.
Sperry Rand Corporation
Terry Howard P.
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