LUMINOPHORE ET COMPOSANT ELECTROLUMINESCENT EXCITE PAR LES ULTRAVIOLETS SOUS VIDE- Brevets EP1632545 (A1)

LUMINOPHORE ET COMPOSANT ELECTROLUMINESCENT EXCITE PAR LES ULTRAVIOLETS SOUS VIDE

N° de brevet:	EP1632545 (A1)
Date de publication:	2006-03-08
Inventeur(s):	ISOBE TOSHINORI [JP];ONO KEIJI [JP];MIYAZAKI SUSUMU [JP];
Demandeur(s):	SUMITOMO CHEMICAL CO [JP];
Classification:	C09K11/59;H01J11/02;H01J17/04;H01J61/44;C09K11/77;
N° de demande:	EP20040732764 20040513
Numéro(s) de priorité:	WO2004JP06795 20040513;JP20030138620 20030516

A phosphor and a vacuum ultraviolet excited light-emitting device are disclosed. The phosphor comprises a compound represented by the following formula (1) Ca 1-a-b Sr a Eu b MgSi 2 O 6 (1) wherein 0.1 < a ¦ 0.35 and 0.003 ¦ b ¦ 0.02. The phosphor is excited by vacuum ultraviolet and emits blue light with high brightness. The vacuum ultraviolet excited light-emitting device comprises the above phosphor.