公开(公告)号：EP1541659A4

公开(公告)日：2007-09-05

申请号：EP03791361

申请日：2003-08-28

Applicant: SUMITOMO CHEMICAL CO

Inventor： TAKEDA TAKASHI ,  ONO KEIJI ,  MIYAZAKI SUSUMU

IPC: C09K11/77 ,  C09K11/78 ,  C09K11/79 ,  H01J11/22 ,  H01J11/34 ,  H01J11/42 ,  H01J11/02

CPC classification number: C09K11/7792 ,  C09K11/7774 ,  H01J2211/42

Abstract: A phosphor having high luminescence when excited by vacuum ultraviolet ray and a vacuum ultraviolet radiation excited light-emitting device comprising the phosphor. The phosphor comprises a metal oxide comprises at least one metal element M selected from the group consisting of Ca, Sr and Ba, at least one metal element M selected from the group consisting of Y, La, Gd and Lu, at least one metal element M selected from the group consisting of Si and Ge and oxygen, and at least one metal element Ln selected from the group consisting of Ce, Pr, Nd, Pm, Sm, Eu, Tb, Dy, Ho, Er, Tm, Yb, and Mn, as an activator.