Oxynitride phosphor activated by a rare earth element, and sialon type phosphor

   
   

An oxynitride phosphor activated by a rare earth element, represented by the formula Ca.sub.x Si.sub.12-(m+n) Al.sub.(m+n) O.sub.n N.sub.16-n : Eu.sub.y Dy.sub.z, wherein stabilizing metal (Ca) is substituted partially by Eu or Eu and Dy where 0.3 Un fosforo di oxynitride attivato da un elemento della terra rara, rappresentato dalla formula Ca.sub.x Si.sub.12-(m+n) Al.sub.(m+n) O.sub.n N.sub.16-n: Eu.sub.y Dy.sub.z, in cui il metallo di stabilizzazione (CA) si sostituisce parzialmente da Eu o Eu e Dy dove 0.3

 
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