FILAMENT BASED SOLID STATE LIGHTING DEVICE

A lighting device (1) is disclosed comprising a transmissive housing (3) and a filament (10) within said transmissive housing. The filament comprises a transmissive substrate (20) carrying a plurality of solid state lighting elements (30) and a phosphor containing resin coating (40) enveloping said...

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Bibliographische Detailangaben
Hauptverfasser:	WU, Tungching, WANG, Xiuru, TIAN, Xiaogai, YAN, Jiahua, SUN, Yanmeng, CHEN, Songhui
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 LIGHT SOURCES NOT OTHERWISE PROVIDED FOR LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATINGELEMENTS LIGHTING MECHANICAL ENGINEERING NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE NON-PORTABLE LIGHTING DEVICES 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:	A lighting device (1) is disclosed comprising a transmissive housing (3) and a filament (10) within said transmissive housing. The filament comprises a transmissive substrate (20) carrying a plurality of solid state lighting elements (30) and a phosphor containing resin coating (40) enveloping said filament. The resin coating includes at least one region (42) leaking light produced by said solid state lighting elements that is unconverted by said phosphor and the transmissive housing carries a further phosphor layer (7) covering part of the transmissive housing for each of said regions of the resin coating, each of said further phosphor layers being arranged to receive said unconverted light leaking from at least one of said regions. Also disclosed is a method of manufacturing such a lighting device. L'invention concerne un dispositif d'éclairage (1) comprenant un boîtier transmissif (3) et un filament (10) à l'intérieur dudit boîtier transmissif. Le filament comprend un substrat transmissif (20) portant une pluralité d'éléments d'éclairage à semi-conducteurs (30) et un revêtement de résine contenant du phosphore (40) enveloppant ledit filament. Le revêtement de résine comprend au moins une région (42), la fuite de lumière produite par lesdits éléments d'éclairage à semi-conducteurs qui est non convertie par ledit luminophore et le boîtier transmissif porte une autre couche de luminophore (7) recouvrant une partie du boîtier transmissif pour chacune desdites régions du revêtement de résine, chacune desdites autres couches de luminophore étant agencée pour recevoir ladite lumière non convertie fuyant d'au moins une desdites régions. L'invention concerne également un procédé de fabrication d'un tel dispositif d'éclairage.