A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
CERAMIC COMPOSITE MATERIAL FOR OPTICAL CONVERSION, PRODUCTION METHOD THEREFOR, AND LIGHT-EMITTING DEVICE PROVIDED WITH SAME
An objective of the present invention is to provide a ceramic composite material for light conversion which exhibits excellent heat resistance, durability, and the like as a light converting member of an optical device such as a white light emitting diode, easily controls the ratio of light from a light source and fluorescence, can reduce color unevenness and variance of emitted light, and has high internal quantum efficiency and fluorescence intensity, a method for producing the same, and a light emitting device which includes the same and has high light conversion efficiency. Provided is a ceramic composite material for light conversion including: a fluorescence phase; and a light transmitting phase, the fluorescence phase being a phase containing Ln 3 Al 5 O 12 :Ce (Ln is at least one element selected from Y, Lu, and Tb, and Ce is an activation element), and the light transmitting phase being a phase containing LaAl 11 O 18 .
CERAMIC COMPOSITE MATERIAL FOR OPTICAL CONVERSION, PRODUCTION METHOD THEREFOR, AND LIGHT-EMITTING DEVICE PROVIDED WITH SAME
An objective of the present invention is to provide a ceramic composite material for light conversion which exhibits excellent heat resistance, durability, and the like as a light converting member of an optical device such as a white light emitting diode, easily controls the ratio of light from a light source and fluorescence, can reduce color unevenness and variance of emitted light, and has high internal quantum efficiency and fluorescence intensity, a method for producing the same, and a light emitting device which includes the same and has high light conversion efficiency. Provided is a ceramic composite material for light conversion including: a fluorescence phase; and a light transmitting phase, the fluorescence phase being a phase containing Ln 3 Al 5 O 12 :Ce (Ln is at least one element selected from Y, Lu, and Tb, and Ce is an activation element), and the light transmitting phase being a phase containing LaAl 11 O 18 .
CERAMIC COMPOSITE MATERIAL FOR OPTICAL CONVERSION, PRODUCTION METHOD THEREFOR, AND LIGHT-EMITTING DEVICE PROVIDED WITH SAME
KERAMIKVERBUNDSTOFFMATERIAL FÜR OPTISCHE UMWANDLUNG, HERSTELLUNGSVERFAHREN DAFÜR UND LICHTEMITTIERENDE VORRICHTUNG DAMIT
MATÉRIAU COMPOSITE CÉRAMIQUE DE CONVERSION OPTIQUE, SON PROCÉDÉ DE PRODUCTION ET DISPOSITIF ÉLECTROLUMINESCENT MUNI DE CELUI-CI
ASAI SHIYOHEI (author) / YAMANAGA MASATAKA (author) / KUWAHARA KAZUKI (author) / NAGAO YUKI (author) / SHIBATA KOJI (author) / KAWANO TAKAFUMI (author)
2017-11-22
Patent
Electronic Resource
English
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