LED lamp with omnidirectional light distribution

An LED based lamp has an optically transmissive enclosure connected to a base. The base may include a heat sink. A substrate is positioned in the enclosure and supports a plurality of LEDs where the periphery of the substrate has alternating recessed portions and protruding portions that define a pl...

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Bibliographische Detailangaben
Hauptverfasser: YOUMANS MARK, NAVA DANTE, HIGLEY ROBERT, DESILVA NICHOLAS
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:An LED based lamp has an optically transmissive enclosure connected to a base. The base may include a heat sink. A substrate is positioned in the enclosure and supports a plurality of LEDs where the periphery of the substrate has alternating recessed portions and protruding portions that define a plurality of laterally extending projections. One LED is located on each of the projections to increase the amount of down light generated by the lamp.