LAMP FOR INCANDESCENT-LIKE COLOR QUALITY

LAMP FOR INCANDESCENT-LIKE COLOR QUALITY

A low pressure discharge lamp comprises a phosphor composition configured to provide a total light emission having characteristics within specified parameters, including color point above or substantially on the Planckian locus in the CIE standard chromaticity diagram; CCT of from about 2500 kelvin...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: DEME, ISTVAN, KAROLY, TOTH, KATALIN
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Beschreibung
Zusammenfassung:A low pressure discharge lamp comprises a phosphor composition configured to provide a total light emission having characteristics within specified parameters, including color point above or substantially on the Planckian locus in the CIE standard chromaticity diagram; CCT of from about 2500 kelvin to about 3600 kelvin; general color rendering index Ra(8) of at least about 80; and special color rendering index R′a(14) of from about 72 to about 87. These novel lamps result in incandescent-like color quality while also having favorable efficacy. Also disclosed are phosphor blends which enable the achievement of such lamps.