公开(公告)号：EP1605028B1

公开(公告)日：2016-12-07

申请号：EP04720242.9

申请日：2004-03-12

申请人： Nichia Corporation

发明人： TAMAKI, H., Nichia Corporation ,  SOFUE, S., Nichia Corporation ,  IZUNO, K., Nichia Corporation ,  TAKEICHI, J., Nichia Corporation

IPC分类号： C09K11/02 ,  C09K11/00 ,  C09K11/80 ,  C09K11/59 ,  H01L33/00

CPC分类号： H01L33/501 ,  C09K11/02 ,  C09K11/0811 ,  C09K11/0844 ,  C09K11/0855 ,  C09K11/7728 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/49107 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

公开(公告)号：EP1605028A1

公开(公告)日：2005-12-14

申请号：EP04720242.9

申请日：2004-03-12

申请人： Nichia Corporation

发明人： TAMAKI, H., Nichia Corporation ,  SOFUE, S., Nichia Corporation ,  IZUNO, K., Nichia Corporation ,  TAKEICHI, J., Nichia Corporation

IPC分类号： C09K11/02 ,  C09K11/00 ,  C09K11/80 ,  C09K11/59 ,  H01L33/00

CPC分类号： H01L33/501 ,  C09K11/02 ,  C09K11/0811 ,  C09K11/0844 ,  C09K11/0855 ,  C09K11/7728 ,  H01L2224/48091 ,  H01L2224/48247 ,  H01L2224/48257 ,  H01L2224/49107 ,  H01L2224/8592 ,  H01L2924/181 ,  H01L2924/00014 ,  H01L2924/00012

摘要： The present invention provides a reliable, long-life phosphor, or the like, which is prevented from darkening due to aging. A light emitting apparatus has a light emitting element and a phosphor layer. The phosphor layer has a phosphor excited by light from the light emitting element, and a binder which binds the phosphor. The binder is hydroxide oxide gel obtained by curing sol of a hydroxide oxide mixed with sol containing at least one metallic element selected from the group consisting of Al, Y, Gd, Lu, Sc, Ga, In, and B. Transmittance of hydroxide oxide in a gel state is higher than the transmittance in the polycrystal state where the sol-gel reaction is proceeded. In addition, the content of hydroxyl group or water of crystallization in the hydroxide oxide is 10% or less by weight.