SINTERED PHOSPHOR, LIGHT-EMITTING DEVICE, ILLUMINATION DEVICE, IMAGE DISPLAY DEVICE AND INDICATOR LAMP FOR VEHICLE

PROBLEM TO BE SOLVED: To provide a sintered phosphor for an LED, having high internal quantum efficiency and transmittance, particularly, a sintered phosphor that can give light emission at a low color temperature, and a light-emitting device, an illumination device, and an indicator lamp for a vehi...

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Bibliographische Detailangaben
Hauptverfasser:	KOMURO NAOYUKI, HORIBE KENTARO, INADA YUHEI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ADHESIVES BASIC ELECTRIC ELEMENTS BLASTING CHEMISTRY DYES ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-PORTABLE LIGHTING DEVICES PAINTS POLISHES SEMICONDUCTOR DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR SYSTEMS THEREOF VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLEEXTERIORS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a sintered phosphor for an LED, having high internal quantum efficiency and transmittance, particularly, a sintered phosphor that can give light emission at a low color temperature, and a light-emitting device, an illumination device, and an indicator lamp for a vehicle, which emit light at a low color temperature with high emission efficiency, high luminance and a large amount of a red color component and prevents changes in brightness or color shift due to changes in the intensity of excitation light and temperature.SOLUTION: The sintered phosphor comprises a nitride phosphor and a fluoride inorganic binder. The nitride phosphor comprises a crystal phase represented by formula [1] LaASiNM, where M element represents at least one element selected from activating elements; A element represents at least one element selected from rare earth elements excluding La and activating elements; and w, x, y and z satisfy 2.0≤w≤4.0, 0