WHITE LIGHT EMITTING DIODE DEVICE

A white-light light emitting diode device comprising a light emitting diode element capable of emitting violet light at a wavelength of 400 to 419 nm and a ceramic composite material, wherein the ceramic composite material is a solidified body in which a cerium-activated Y 3 Al 5 O 12 (Y 3 Al 5 O 12...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	FUJII, ITSUHIRO, SAKATA, SHIN-ICHI, MITANI, ATSUYUKI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY LIME, MAGNESIA MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PAINTS POLISHES REFRACTORIES SEMICONDUCTOR DEVICES SLAG TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:	A white-light light emitting diode device comprising a light emitting diode element capable of emitting violet light at a wavelength of 400 to 419 nm and a ceramic composite material, wherein the ceramic composite material is a solidified body in which a cerium-activated Y 3 Al 5 O 12 (Y 3 Al 5 O 12 :Ce) crystal and an ±-type aluminum oxide (Al 2 O 3 ) crystal are continuously and three-dimensionally entangled with each other, the solidified body having not only a photoluminescent property of wavelength-converting a part of the violet light into yellow light but also a function of transmitting a part of the violet light, and the violet light transmitted through the ceramic composite material and yellow light resulting from wavelength conversion by the ceramic composite material are mixed to emit pseudo-white light.