Phosphor for light sources and associated light source

Details Phosphor for light sources and associated light source Phosphor for light sources and associated light source

H - Electricity

05

B

H05B 33/14 (2006.01) C09K 11/77 (2006.01) C09K 11/78 (2006.01) C09K 11/80 (2006.01) H01L 33/00 (2006.01)

Patent

CA 2345114

A luminous substance for light sources, whereby the emission thereof is located within the spectral region and has a granitic structure A3B5O12. Said substance is activated with Ce. The second constituent B represents at least one of the elements Al and Ga and the first constituent contains A terbium. Preferably, a garnet having the following structure (Tb1-x-y SE-Ce y)3(Al, Ga)5O12) is used, whereby SE=Y, Gd. La and/or Lu: 0<=x<=0,5-y; and 0 < y < 0,1.

L'invention concerne une substance fluorescente pour sources lumineuses, dont l'émission se situe dans le domaine spectral optique à ondes courtes et qui présente une structure à grenat A¿3?B¿5?O¿12?. Cette substance fluorescente est activée avec du Ce, le second constituant B représentant au moins un des éléments La et Ga et le premier constituant A contenant du terbium. On utilise notamment un grenat de structure (Tb¿1-x-y?SE¿x?Ce¿y?)¿3?(La,Ga)¿5?O¿12?, SE = Y, Gd, La et/ou Lu; 0<=x<=0,5-y ; 0<y<0,1.

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