Solid state lighting device with elongated heatsink

摘要

Solid state lighting devices include elongated heatsinks with multiple raised features each including a major surface non-parallel to a longitudinal direction of the heatsink. A device-scale heatsink including raised features may include at least a portion of a threaded rod or tube, with threads thereof forming the raised features. Raised features may also be formed by stamped and bent emitter support elements arranged to support solid state light emitters, with the emitter support elements inserted into recesses of an elongated heatsink body.

主权项

1. A lighting device comprising a plurality of solid state light emitters in conductive thermal communication with a device-scale heatsink including at least a portion of a rod or tube having a length extending in a longitudinal direction and having a width extending in a lateral direction, wherein:
the length is at least about five times the width; the device-scale heatsink includes a plurality of raised features; and each raised feature of the plurality of raised features includes a major surface arranged non-parallel to the longitudinal direction; wherein the lighting device comprises a plurality of emitter support elements defining the plurality of raised features and arranged to support the plurality of solid state light emitters, wherein the plurality of emitter support elements are arranged in conductive thermal communication with the device-scale heatsink, and wherein at least a portion of each raised feature comprises a printed circuit board.