LED FILAMENT FOR EMITTING DIRECTIONAL LIGHT

The present invention relates to a light-emitting diode (LED) filament (1) configured to provide LED filament light (A, B) and comprising an elongated carrier (2) comprising a first elongated edge portion (3) and a second elongated edge portion (3′) arranged at a distance (W1) from the first elongat...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	VAN BOMMEL, TIES
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMSTHEREOF HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED 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 STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHERARTICLES, NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	The present invention relates to a light-emitting diode (LED) filament (1) configured to provide LED filament light (A, B) and comprising an elongated carrier (2) comprising a first elongated edge portion (3) and a second elongated edge portion (3′) arranged at a distance (W1) from the first elongated edge portion (3), a first surface (4), a second surface (4′) arranged opposite to the first surface (4), the first and the second surfaces (4,4′) being delimited by the first and the second edge portions (3,3′). The LED filament (1) further comprises a plurality of first light-emitting diodes (5), LEDs, distributed along the first surface (4) of the elongated carrier (2), the plurality of first LEDs (5) being configured to emit a first LED light. The LED filament (1) also comprises a first at least partially light-transmissive elongated layer (6) encapsulating or covering the plurality of first LEDs (5) and at least partially encapsulating or covering the first surface (4) of the elongated carrier (2) and a second elongated reflective layer (7) arranged to asymmetrically encapsulate or cover the first at least partially light-transmissive elongated layer (6).