LED lamp assembly having heat conductive LED support member

摘要

A sealed optical street luminaire having a luminaire housing fitted with a clear, flat lens and provided with an LED light source assembly mounted in the housing. The light source assembly has a heat dissipating LED support member secured to a heat conductive adapter for securement in the luminaire housing. A reflector is secured in the luminaire housing. The LED support member supports LED modules at a predetermined angle and orientation relative to an inner reflective surface of the circumferential wall of the reflector. The heat dissipating LED support member and the heat conductive adapter dissipate heat through the luminaire housing whereby to operate the LED modules at a lower temperature than the critical thermal temperature Tc of the LED modules whereby to achieve lifespan, photometric and colorometric rating of the LED modules.

主权项

1. An indoor sealed optical luminaire comprising a heat conductive support forming a head of said luminaire, said heat conductive support having a reflector secured in a lower surface portion thereof, a clear, flat lens sealingly secured about a circumferential side wall of said reflector, a heat dissipating LED support member secured to said lower surface portion of said heat conductive support and spaced rearwardly of said lens, a pair of high power LED modules secured to said LED support member and disposed in spaced relationship at a predetermined angle and orientation relative to an inner reflective surface of said circumferential side wall of said reflector whereby to produce a desired oriented photometric light distribution pattern on a plane thereunder to be illuminated, said heat dissipating LED support member comprising a heat conductive support block transferring heat generated by said LED of said modules directly into said heat conductive support for dissipation in the ambient surrounding air to operate the LED modules at a lower temperature than the critical thermal temperature Tc of said LED modules specified by manufacturer specification to achieve lifespan, photometric and chronometric rating of said LED modules while generating required lumens in conformity with photometric requirements for said plane to be illuminated.