WHITE PHOSPHOR CONVERTED LED WITH STABLE FLUX OUTPUT VERSUS TEMPERATURE

The invention provides a lighting device (1) comprising a solid state light source (10) and a ceramic body (100), wherein the solid state light source (10) is configured to provide blue light source light (11) to the ceramic body (100), wherein the ceramic body (100) comprises a ceramic material (12...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	HEIDEMANN, Matthias, WIECHERT, Detlef Uwe, STEIGELMANN, Oliver Jens, BECHTEL, Hans-Helmut
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	BASIC ELECTRIC ELEMENTS BLASTING ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING LIGHTING MECHANICAL ENGINEERING SEMICONDUCTOR DEVICES STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	The invention provides a lighting device (1) comprising a solid state light source (10) and a ceramic body (100), wherein the solid state light source (10) is configured to provide blue light source light (11) to the ceramic body (100), wherein the ceramic body (100) comprises a ceramic material (120) configured to wavelength convert part of the blue light source light (11) into yellow converter light (101), to provide white lighting device light (2) comprising said blue light source light (11) and said yellow converter light (101), said white lighting device light (2) having a color point selected from the range of 0.18≤u'≤0.25 and 0.42≤v'≤0.54, and wherein the ceramic material (120) comprises a (Y(1-y-q-z), Gdy,Luq, Cez)3(Al(1-x),Gax)5O12 ceramic material, with 0≤x≤0.6, 0≤y≤0.5, 0≤q