Patent ID: 9303857
Filing Date: 2016-04-05
CPC Classification: F21K,F21V,F21Y

Claim Text:
1. A lamp comprising: an optically transmissive enclosure; a base connected to the enclosure defining a longitudinal axis of the lamp extending from the base to a distal end of the enclosure; a substrate comprising a surface disposed substantially perpendicularly to the longitudinal axis supporting a plurality of LEDs in the enclosure positioned to direct light primarily away from base wherein the periphery of the substrate comprises alternating first recessed portions and first protruding portions that define a plurality of laterally extending projections where one of the plurality of LEDs is supported on one of the plurality of projections; a heat sink comprising second protruding portions and second recessed portions that correspond to the first protruding portions and first recessed portions on the periphery of the substrate such that the second protruding portions are vertically aligned with the first protruding portions and the second recessed portions are vertically aligned with the first recessed portions such that a plurality of passages are formed along the longitudinal axis of the heat sink that extend from adjacent the LEDs toward the base, the heat sink having a first portion located inside of the enclosure and a second portion located outside of the enclosure where the plurality of passages extend from inside the enclosure to outside the enclosure.